| Acronym | Definition |
|---|
| ISIR➣Institute of Scientific and Industrial Research (Japan) |
| ISIR➣Institut des Systèmes Intelligents et de Robotique (Paris, France) |
| ISIR➣Institutional Student Information Report |
| ISIR➣International Society for Intelligence Research |
| ISIR➣Initial Sample Inspection Report |
| ISIR➣International Society for Inventory Research (Budapest, Hungary) |
| ISIR➣International Society for Impotence Research |
| ISIR➣Integrated System of Information Resources |
| ISIR➣In Service In Reserve |
| ISIR➣Items of Special Interest Reporting |
| ISIR➣Induction-Start Induction-Run (motors) |